Some puzzles requiring no knowledge of knot theory, just a careful
inspection of the patterns. A glimpse of the classification of
knots and a little about prime knots, crossing numbers and knot
Investigations based on an Indian game.
All you need for this game is a pack of cards. While you play the
game, think about strategies that will increase your chances of
Do NOT use live matches. Get a grown-up
to prepare some dead matches for you. .
Lay out the sticks to make three rows of four squares.
Each player takes turns at removing any stick along with all the
others that touch it. For example, if you chose the blue stick
below, then the six red sticks must be taken too.
Whoever takes the last stick wins the game.
Try to find winning strategies.